A na-eji ngwa a maka nchọpụta qualitative in vitro nke ọgwụ nje virus enwe, gụnyere IgM na IgG, na serum mmadụ, plasma na ihe nlele ọbara dum.
A na-eji ngwa a mee nchọpụta qualitative nke nje-virus antigen n'ime mmiri ọkụ ọkụ mmadụ na ihe nlele akpịrị.